I have just upgraded this blog to WordPress 3.2 and for the first time in a long while I had to revert to the manual method. While doing the automatic upgrade, I got a Server 500 error (seems to be a common thing with DreamHost) and was left in maintenance mode.
Getting rid of the maintenance mode was easy – just delete the .maintenance file in the root of the blog. But the failed upgrade left the upgrade in an unstable state – some files were upgraded while other were still at their old versions.
I then just went through a manual upgrade using FTP and now everything seems to be back to normal running WordPress 3.2.
If you spot something out of the ordinary then please drop me a comment so that I can have a look at it.